Padlock



lNTeD STATES PATENT OFFICE.

DANIEL SWEENEY, OF PATTERSON, NEW JERSEY.

PADLOCK.

' SPECIFICATION forming part of Letters Patent No. 268,142, dated November 28, 1882.

Application iled July 29, 1882. (Model.)

To all whom it may concern Be it known that I, DANIEL SWEENEY, of Paterson, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in Padlocks; and l do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

My invention relates to padlocks constructe with a sliding shackle; and it consists in a novel construction and arrangement of the mechanism of the lock, whereby it is made to produce a very secure fastening of the shackle, which cannot be openedotherwise than with the appropriate. key or a counterfeit thereof.

In the accompanying drawings, Figure l is an elevation of the padlock with its face-plate removed, illustrating the position of the several parts of the locking mechanism when the bolt is shut and the shackle is secured thereby, the key being inserted in position for opening the lock. Fig. 2 is a similar view of the device with the mechanism in its open er unlocked position.

A is the lock-case, and B the shackle, constructed with arms of unequal length. The longer arm, c, of the shackle plays in a recess formed upon one side of the case, and its shorter arm terminates in a catch-plate, d, which enters the upper end. of a counterpart recess on the opposite side of the ease, and bears down upon a loose block, F, vplaying freely in the recess and actuated by a spiral spring, Gr, in the bottom thereof.

H is a bolt fitted to slide transversely in the upper end of the case. lts frontend is adapted to engage the catch'plate d upon the end of the shackle by entering a recess or socket formed therein. Its rear end extends beyond the long arm c of the shackle and engages a lug, e, which projects from the side of the shackle under the end of the bolt, so that the shackle is locked at both ends by the bolt when it is shot forward. When the bolt is slid back to disengage its front end from the socket in the shorter arm of the shackle ,a transverse recess, f, formed in the side of the bolt upon the side next to the shackle-arm e (see dotted lines in Fig. 1) is carried into'register with the luge, so that the latter may pass freely up through the recess, (see Fig. 2,) thus leaving the arm free to be lifted from the bolt. This bolt His locked by a tumbler, I, arranged to slide at right angles thereto in line with the key-hole, which is formed centrally in the bottom of the case. end of the tumbler passes by the side of the bolt, and a lateral lug, c', thereon engages a notch in the upper edge of the bolt, and is lifted therefrom to release the bolt by the pressure of the key on the inner end of the tumbler, as hereinafter described. 'Ihe bolt is actuated by a eentrally-pivoted lever, K, which is placed parallel with the tumbler I, and whose outer end enters a slot in the bolt. Its inner end lies close to the tumbler I, and, extending beyond the inner end thereof, is notched, as illustrated in the drawings, to be engaged by the key. Its outer end is made to form an offset laterally from the inner end, so as to leave room for said outer end to swing toward the tumbler when the inner end isacted upon by the key. A swinging lever or tumbler, L, is pivoted at one end within the case on the. side of the tumbler I opposite to the actuating-lever K, so that its lower end may swing lfreely to and from the keyway under the tumbler I, and said lower end terminates in an offset, M, and dog N, projecting on opposite sides thereof. 'lhe offset M projects into the keyway when the tumbleris in its normal position. The opposite dog, N, is adapted to enter a socket in the lower end of the long arm c of the shackle when the tumbler is forced back from the key way. The tumbler I is held down to lock the bolt H, and the tumbler L is held in position, with its odi set M in the keyway, by the ends ofthe spring P, which is fastened to the pivot of the tumbler L, as shown in the drawings. The inner or lower end of the lever K is forced toward the keyway, and its upper end thereby made to throw the bolt automatically outward, by means of a spring, R, fastened to the sideof the case. a

The key for this lock is constructed with a straight stem, S, whose upper end is slotted to receive a tumbler, T, which is pivoted therein to swing out laterally therefrom at an angle therewith, as shown in the drawings.

The outer IOO In operation, the key S is inserted through the key-hole in the bottom of the case, and as it is pushed up through the keyway the offset M on the tumbler L, entering the slot in the end of the key, strikes the tumbler 'l therein and throwsitoutlaterallyin position, as shown in the drawings, to engage the notch on the lower end ofthe pivoted lever K. At the same time the end of the key strikes against the bottom of the tumbler I. (See Fig. 1.) The key being now forced in farther, the tumbler I is pushed up until its dog i is wholly disengaged from the bolt H, whereupon the action ot' the tumbler l of the key upon the lever K will swing the lower end of said lever outward and ca use its upper end to force the bolt H inward, and so disengage its outer end from the shackle B. The spring G, actuating the block F, will operate to force out the shackle rest-ing thereon. The outward movement of the block F, in springing out the shackle, is arrested bythe end of the bolt, which still projects farenough over the recess to engage it, as shown in Fig. 2, and the block then serves in turn to prevent the return of the bolt under the influence of the spring R until the block is forced in again by the end of the shackle when pushed in to be locked. When the shackle is pushed in and the block F forced down the released bolt will automatically fly into the socket in the catch-plate d-of the shackle to lock it. If an attempt be made to open the lock by means ot other than the appropriate key S, the tumbler L will swing back out of the keyway, and in swinging back its dog N will engage the lower end of the'long shackle-arm and lock it, as illustrated by dotted lines in Fig. 1, so that QGSJAQ the elevation of the tumbler I and movement ofthe lever K by the false key will fail to set free the shackle. The openings through which the shackle-arms enter the case are protected by means of a shoulder, W, encircling each arm in position to fit closely down upon the case when the shackle is closed, (see Fig. 1,) and the position of the key-hole in the bottom of the case serves to prevent an entrance of rain at that point.

I claim as my inventionl. The combination, in a padlock, with a bolt, H, tumbler I, and throw-lever K, of the swinging tumblerL and its oli'set M, construct ed and adapted to operate substantially in the manner and for the pirpose herein set forth.

2. The combination, in a padlock, with its shackle A, bolt H, tumbler l, and throw-lever K, and with the offset M upon the swinging tumbler L, of a dog, N, opposite to said olset, adapted to engage and lock the longer arm ot' the shackle when the tumbler is forced back from the keyway, substantially in the manner and for the purpose herein set forth.

3. rPhe combination, with the bolt H, throwlever K, and tumblers I and Lof a padlock, ot' a key-stem, S, carrying a pivoted tumbler, T, adapted to swing out from the stem and engage the throw-lever K, substantially in the manner and for the purpose herein set forth.

In testimony whereofl have signed my name to this specification in the presence of two subscribing witnesses.

' DANIEL SWEENEY.

Witnesses: Y

CHAs. J. UoNDoN, HENRY (ELEMENTS. 

